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javax.lang.model.AnnotatedConstruct

Represents a construct that can be annotated.

A construct is either an javax.lang.model.element.element or a javax.lang.model.type.type. Annotations on an element are on a declaration, whereas annotations on a type are on a specific use of a type name.

The terms directly present, present, indirectly present, and associated are used throughout this interface to describe precisely which annotations are returned by the methods defined herein.

In the definitions below, an annotation A has an annotation type AT. If AT is a repeatable annotation type, the type of the containing annotation is ATC.

Annotation A is directly present on a construct C if either:

A is explicitly or implicitly declared as applying to the source code representation of C.

Typically, if exactly one annotation of type AT appears in the source code of representation of C, then A is explicitly declared as applying to C.

If there are multiple annotations of type AT present on C, then if AT is repeatable annotation type, an annotation of type ATC is implicitly declared on C.

A representation of A appears in the executable output for C, such as the RuntimeVisibleAnnotations or RuntimeVisibleParameterAnnotations attributes of a class file.

An annotation A is present on a construct C if either:

A is directly present on C.

No annotation of type AT is directly present on C, and C is a class and AT is inheritable and A is present on the superclass of C.

An annotation A is indirectly present on a construct C if both:

AT is a repeatable annotation type with a containing annotation type ATC.

An annotation of type ATC is directly present on C and A is an annotation included in the result of calling the value method of the directly present annotation of type ATC.

An annotation A is associated with a construct C if either:

A is directly or indirectly present on C.

No annotation of type AT is directly or indirectly present on C, and C is a class, and AT is inheritable, and A is associated with the superclass of C.

Represents a construct that can be annotated.

A construct is either an javax.lang.model.element.element or a javax.lang.model.type.type.  Annotations on an element
are on a declaration, whereas annotations on a type are on
a specific use of a type name.

The terms directly present, present,
indirectly present, and associated  are used
throughout this interface to describe precisely which annotations
are returned by the methods defined herein.

In the definitions below, an annotation A has an
annotation type AT. If AT is a repeatable annotation
type, the type of the containing annotation is ATC.

Annotation A is directly present on a construct
C if either:



A is explicitly or implicitly declared as applying to
the source code representation of C.

Typically, if exactly one annotation of type AT appears in
the source code of representation of C, then A is
explicitly declared as applying to C.

If there are multiple annotations of type AT present on
C, then if AT is repeatable annotation type, an
annotation of type ATC is implicitly declared on C.

 A representation of A appears in the executable output
for C, such as the RuntimeVisibleAnnotations or
RuntimeVisibleParameterAnnotations attributes of a class
file.



An annotation A is present on a
construct C if either:


A is directly present on C.

No annotation of type AT is directly present on
C, and C is a class and AT is inheritable
and A is present on the superclass of C.



An annotation A is indirectly present on a construct
C if both:



AT is a repeatable annotation type with a containing
annotation type ATC.

An annotation of type ATC is directly present on
C and A is an annotation included in the result of
calling the value method of the directly present annotation
of type ATC.



An annotation A is associated with a construct
C if either:



 A is directly or indirectly present on C.

 No annotation of type AT is directly or indirectly
present on C, and C is a class, and AT is
inheritable, and A is associated with the superclass of
C.
raw docstring

get-annotationclj

(get-annotation this annotation-type)

Returns this construct's annotation of the specified type if such an annotation is present, else null.

The annotation returned by this method could contain an element whose value is of type Class. This value cannot be returned directly: information necessary to locate and load a class (such as the class loader to use) is not available, and the class might not be loadable at all. Attempting to read a Class object by invoking the relevant method on the returned annotation will result in a MirroredTypeException, from which the corresponding TypeMirror may be extracted. Similarly, attempting to read a Class[]-valued element will result in a MirroredTypesException.

Note: This method is unlike others in this and related interfaces. It operates on runtime reflective information — representations of annotation types currently loaded into the VM — rather than on the representations defined by and used throughout these interfaces. Consequently, calling methods on the returned annotation object can throw many of the exceptions that can be thrown when calling methods on an annotation object returned by core reflection. This method is intended for callers that are written to operate on a known, fixed set of annotation types.

annotation-type - the Class object corresponding to the annotation type - java.lang.Class

returns: this construct's annotation for the specified annotation type if present, else null - <A extends java.lang.annotation.Annotation> A

Returns this construct's annotation of the specified type if
 such an annotation is present, else null.

  The annotation returned by this method could contain an element
 whose value is of type Class.
 This value cannot be returned directly:  information necessary to
 locate and load a class (such as the class loader to use) is
 not available, and the class might not be loadable at all.
 Attempting to read a Class object by invoking the relevant
 method on the returned annotation
 will result in a MirroredTypeException,
 from which the corresponding TypeMirror may be extracted.
 Similarly, attempting to read a Class[]-valued element
 will result in a MirroredTypesException.


 Note: This method is unlike others in this and related
 interfaces.  It operates on runtime reflective information —
 representations of annotation types currently loaded into the
 VM — rather than on the representations defined by and used
 throughout these interfaces.  Consequently, calling methods on
 the returned annotation object can throw many of the exceptions
 that can be thrown when calling methods on an annotation object
 returned by core reflection.  This method is intended for
 callers that are written to operate on a known, fixed set of
 annotation types.

annotation-type - the Class object corresponding to the annotation type - `java.lang.Class`

returns: this construct's annotation for the specified
 annotation type if present, else null - `<A extends java.lang.annotation.Annotation> A`
raw docstring

get-annotation-mirrorsclj

(get-annotation-mirrors this)

Returns the annotations that are directly present on this construct.

returns: the annotations directly present on this construct; an empty list if there are none - java.util.List<? extends javax.lang.model.element.AnnotationMirror>

Returns the annotations that are directly present on
 this construct.

returns: the annotations directly present on this
 construct; an empty list if there are none - `java.util.List<? extends javax.lang.model.element.AnnotationMirror>`
raw docstring

get-annotations-by-typeclj

(get-annotations-by-type this annotation-type)

Returns annotations that are associated with this construct.

If there are no annotations associated with this construct, the return value is an array of length 0.

The order of annotations which are directly or indirectly present on a construct C is computed as if indirectly present annotations on C are directly present on C in place of their container annotation, in the order in which they appear in the value element of the container annotation.

The difference between this method and getAnnotation(Class) is that this method detects if its argument is a repeatable annotation type, and if so, attempts to find one or more annotations of that type by "looking through" a container annotation.

The annotations returned by this method could contain an element whose value is of type Class. This value cannot be returned directly: information necessary to locate and load a class (such as the class loader to use) is not available, and the class might not be loadable at all. Attempting to read a Class object by invoking the relevant method on the returned annotation will result in a MirroredTypeException, from which the corresponding TypeMirror may be extracted. Similarly, attempting to read a Class[]-valued element will result in a MirroredTypesException.

Note: This method is unlike others in this and related interfaces. It operates on runtime reflective information — representations of annotation types currently loaded into the VM — rather than on the representations defined by and used throughout these interfaces. Consequently, calling methods on the returned annotation object can throw many of the exceptions that can be thrown when calling methods on an annotation object returned by core reflection. This method is intended for callers that are written to operate on a known, fixed set of annotation types.

annotation-type - the Class object corresponding to the annotation type - java.lang.Class

returns: this construct's annotations for the specified annotation type if present on this construct, else an empty array - <A extends java.lang.annotation.Annotation> A[]

Returns annotations that are associated with this construct.

 If there are no annotations associated with this construct, the
 return value is an array of length 0.

 The order of annotations which are directly or indirectly
 present on a construct C is computed as if indirectly present
 annotations on C are directly present on C in place of their
 container annotation, in the order in which they appear in the
 value element of the container annotation.

 The difference between this method and getAnnotation(Class)
 is that this method detects if its argument is a repeatable
 annotation type, and if so, attempts to find one or more
 annotations of that type by "looking through" a container annotation.

  The annotations returned by this method could contain an element
 whose value is of type Class.
 This value cannot be returned directly:  information necessary to
 locate and load a class (such as the class loader to use) is
 not available, and the class might not be loadable at all.
 Attempting to read a Class object by invoking the relevant
 method on the returned annotation
 will result in a MirroredTypeException,
 from which the corresponding TypeMirror may be extracted.
 Similarly, attempting to read a Class[]-valued element
 will result in a MirroredTypesException.


 Note: This method is unlike others in this and related
 interfaces.  It operates on runtime reflective information —
 representations of annotation types currently loaded into the
 VM — rather than on the representations defined by and used
 throughout these interfaces.  Consequently, calling methods on
 the returned annotation object can throw many of the exceptions
 that can be thrown when calling methods on an annotation object
 returned by core reflection.  This method is intended for
 callers that are written to operate on a known, fixed set of
 annotation types.

annotation-type - the Class object corresponding to the annotation type - `java.lang.Class`

returns: this construct's annotations for the specified annotation
         type if present on this construct, else an empty array - `<A extends java.lang.annotation.Annotation> A[]`
raw docstring

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